One-Step Solvothermal Method to Prepare Ag/Cu2O Composite With Enhanced Photocatalytic Properties

Nanoscale Research Letters
Xiaolong DengXijin Xu

Abstract

Ag/Cu2O microstructures with diverse morphologies have been successfully synthesized with different initial reagents of silver nitrate (AgNO3) by a facile one-step solvothermal method. Their structural and morphological characteristics were carefully investigated by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM), and the experimental results showed that the morphologies transformed from microcubes for pure Cu2O to microspheres with rough surfaces for Ag/Cu2O. The photocatalytic activities were evaluated by measuring the degradation of methyl orange (MO) aqueous solution under visible light irradiation. The photocatalytic efficiencies of MO firstly increased to a maximum and then decreased with the increased amount of AgNO3. The experimental results revealed that the photocatalytic activities were significantly influenced by the amount of AgNO3 during the preparation process. The possible reasons for the enhanced photocatalytic activities of the as-prepared Ag/Cu2O composites were discussed.

References

Oct 10, 2002·Chemical Reviews·Alain RoucouxHenri Patin
Jun 2, 2005·Journal of Colloid and Interface Science·Chengcai LuoYanguang Wang
Nov 19, 2009·Journal of the American Chemical Society·Chun-Hong KuoMichael H Huang
Jul 6, 2014·ACS Applied Materials & Interfaces·Qingyong TianVellaisamy A L Roy
Jun 16, 2015·Optics Express·F Pelayo García de Arquer, Gerasimos Konstantatos
May 2, 2013·The Journal of Physical Chemistry Letters·Mahmoud A Mahmoud, Mostafa A El-Sayed

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Methods Mentioned

BETA
X-ray
transmission electron microscopy
surface plasmon resonance

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